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Keywords:

  • benzofuran;
  • carbazole;
  • methacrylates;
  • photovoltaic properties

Abstract

Summary: The article focuses on the photovoltaic devices made from copolymers of 2-(carbazol-9-yl)ethyl methacrylate (CEM) with benzofuran-2-carboxylic acid 2-(methacryloyloxy)ethyl 6-(diethylamino)benzo[b]furan-2-carboxylate (MB) and poly(3-decylthiophene) (PDT) or poly(3-octylthiophene) (P3OT). Photovoltaic cell structure consisted of ITO/active materials/Al. The photophysics of such photoactive devices is based on the photo-induced charge transfer from donor-type semiconducting conjugated polymers to the acceptor-type polymers. The monomer synthesis and polymerization as well as the device fabrication are presented. The copolymers can be spin-coated from a solution at room temperature without subsequent processing and heat treatment. The photovoltaic properties of the devices are shown.